Sigma 18-250mm f/3.5-6.3 DC OS HSM Macro vs Tamron 18-270mm f/3.5-6.3 Di II PZD

Both are Pentax K lenses. Here is what actually differs.

Sigma

18-250mm f/3.5-6.3 DC OS HSM Macro

f/3.5

Full specs

Tamron

18-270mm f/3.5-6.3 Di II PZD

f/3.5

Full specs

Pick the Sigma 18-250mm f/3.5-6.3 DC OS HSM Macro if

Our spec data shows no clear advantage for this lens.

Pick the Tamron 18-270mm f/3.5-6.3 Di II PZD if

You need more reach: 270mm vs 250mm at the long end

Spec differences

3 differences

Specifications that differ between the Sigma 18-250mm f/3.5-6.3 DC OS HSM Macro and the Tamron 18-270mm f/3.5-6.3 Di II PZD
	Sigma 18-250mm f/3.5-6.3 DC OS HSM Macro	Tamron 18-270mm f/3.5-6.3 Di II PZD
Brand	Sigma	Tamron
Type	Macro	Superzoom
Focal length	18-250mm	18-270mm

2 identical specs hidden: mount, max aperture. Show all

Mount: Pentax K both
Max aperture: f/3.5 both

Our notes

Sigma 18-250mm f/3.5-6.3 DC OS HSM Macro

Sigma 18-250mm f/3.5-6.3 DC OS HSM Macro: an APS-C macro zoom lens with a 18-250mm focal length and a maximum aperture of f/3.5-6.3, made for Pentax K mount cameras, with Optical Stabilizer and Hyper Sonic Motor autofocus. A high-ratio walk-around zoom for APS-C cameras.

Our notes

Tamron 18-270mm f/3.5-6.3 Di II PZD

A 18-270mm f/3.5-6.3 APS-C superzoom lens, the Tamron 18-270mm f/3.5-6.3 Di II PZD is designed for Pentax K mount bodies, with quiet motor-driven autofocus. A high-ratio travel zoom covering wide-angle to telephoto in one lens.